The CDC confirmed a case of sexually transmitted HIV from one woman, who was diagnosed previously but stopped receiving antiretroviral treatment in 2010, to her female partner. While rare, this case should remind all of us that safer sex remains important.

For many years, the term “unprotected sex” has been synonymous with “sex without a condom.” But some HIV advocates argue that this language is outdated and imprecise, and the CDC has agreed to change it.

Sex Week is coming to the University of Tennessee’s Knoxville campus, but some state legislators really wish it wasn’t. A resolution was approved in the Tennessee house this week calling the event an “outrageous misuse of student fees and grant monies.”

This week, the United States could learn a lot from a UK town about preventing unintended pregnancies, the United Arab Emirates is mandating that women breastfeed their children for a full two years, and a study looks at sex after breakups among college students.

We all know that Lyme disease comes from the dreaded deer tick, but a new study suggests that it might also be sexually transmitted. Other experts, however, caution that while we should pay attention to the study’s findings, we should not overact.

This week, Chicago launches a new initiative to up the number of teens who get vaccinated for HPV, a Spanish study makes headlines about how rich people supposedly have better sex, and a New York Times op-ed urges safe sex for seniors.

With the state legislature set to convene in February, the Arkansas Rally for Reproductive Justice is meant to send the message that activists have not forgotten about the legislative attacks on reproductive rights last year.

This week, design students want to revamp condom packaging to appeal to women, a sex toy company released new underwear, and sex researchers predict 2014 will mark the return of “vanilla” sex for couples—but we’re not so sure we agree.